1 // SPDX-License-Identifier: GPL-2.0-only
3  * CPCAP Power Button Input Driver
17 #include <linux/mfd/motorola-cpcap.h>
30 	struct cpcap_power_button *button = _button;  in powerbutton_irq()  local
33 	val = cpcap_sense_virq(button->regmap, irq);  in powerbutton_irq()
35 		dev_err(button->dev, "irq read failed: %d", val);  in powerbutton_irq()
39 	pm_wakeup_event(button->dev, 0);  in powerbutton_irq()
40 	input_report_key(button->idev, KEY_POWER, val);  in powerbutton_irq()
41 	input_sync(button->idev);  in powerbutton_irq()
48 	struct cpcap_power_button *button;  in cpcap_power_button_probe()  local
56 	button = devm_kmalloc(&pdev->dev, sizeof(*button), GFP_KERNEL);  in cpcap_power_button_probe()
57 	if (!button)  in cpcap_power_button_probe()
58 		return -ENOMEM;  in cpcap_power_button_probe()
60 	button->idev = devm_input_allocate_device(&pdev->dev);  in cpcap_power_button_probe()
61 	if (!button->idev)  in cpcap_power_button_probe()
62 		return -ENOMEM;  in cpcap_power_button_probe()
64 	button->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in cpcap_power_button_probe()
65 	if (!button->regmap)  in cpcap_power_button_probe()
66 		return -ENODEV;  in cpcap_power_button_probe()
68 	button->dev = &pdev->dev;  in cpcap_power_button_probe()
70 	button->idev->name = "cpcap-pwrbutton";  in cpcap_power_button_probe()
71 	button->idev->phys = "cpcap-pwrbutton/input0";  in cpcap_power_button_probe()
72 	input_set_capability(button->idev, EV_KEY, KEY_POWER);  in cpcap_power_button_probe()
74 	err = devm_request_threaded_irq(&pdev->dev, irq, NULL,  in cpcap_power_button_probe()
75 		powerbutton_irq, IRQF_ONESHOT, "cpcap_pwrbutton", button);  in cpcap_power_button_probe()
77 		dev_err(&pdev->dev, "IRQ request failed: %d\n", err);  in cpcap_power_button_probe()
81 	err = input_register_device(button->idev);  in cpcap_power_button_probe()
83 		dev_err(&pdev->dev, "Input register failed: %d\n", err);  in cpcap_power_button_probe()
87 	device_init_wakeup(&pdev->dev, true);  in cpcap_power_button_probe()
94 	{ .compatible = "motorola,cpcap-pwrbutton" },
103 		.name	= "cpcap-pwrbutton",
109 MODULE_ALIAS("platform:cpcap-pwrbutton");
110 MODULE_DESCRIPTION("CPCAP Power Button");